181668882712168 has 16 divisors (see below), whose sum is σ = 340630131235680. Its totient is φ = 90834181049328.

The previous prime is 181668882712159. The next prime is 181668882712241. The reversal of 181668882712168 is 861217288866181.

181668882712168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 181668882712168.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29556180 + ... + 35169667.

It is an arithmetic number, because the mean of its divisors is an integer number (21289383202230).

Almost surely, 2^{181668882712168} is an apocalyptic number.

It is an amenable number.

181668882712168 is a deficient number, since it is larger than the sum of its proper divisors (158961248523512).

181668882712168 is a wasteful number, since it uses less digits than its factorization.

181668882712168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65076696 (or 65076692 counting only the distinct ones).

The product of its digits is 198180864, while the sum is 73.

The spelling of 181668882712168 in words is "one hundred eighty-one trillion, six hundred sixty-eight billion, eight hundred eighty-two million, seven hundred twelve thousand, one hundred sixty-eight".